【单选题】Current flowing in only one direction is called _____.
B.
omnidirectional current
【单选题】Current flowing in only one direction is called _____
【单选题】假定商品市场是完全竞争的,如果某种商品的价格是5美元,某厂商生产这种商品的边际成本是5美元,该厂商要获得最大利润,他应该( )?
【单选题】The current flowing first in one direction and then in another is called_____ current.
【单选题】使用含氯消毒液对手部进行消毒 , 应江双手在消毒液中浸泡至少 ( ) 。
【单选题】Current flowing in only one direction is called ( )